There seems to be a real emergence of Web 2.0 sites out there, and while most of them are at least interesting if not great to know about or use, every once in awhile I'm stumbling upon one that is...really neat. And in this case the site that I've stumbled upon is one that I believe will be extremely useful in support of your Personal Knowledge Management efforts. For those unfamiliar with the term/concept of Personal Knowledge Management (PKM), PKM is much more focused upon improving the productivity of organizational knowledge workers to the extent that organizational knowledge management efforts are planned/coordinated from the consideration of the end-user's needs and activities, and how the knowledge management effort would or could contribute to that end-user's performance. In a sense, PKM is much more about personal effectiveness. However, PKM isn't really about the "tools" so much as what a knowledge worker can accomplish by using the tools. Tools that improve the personal effectiveness are the staple of PKM, including tools that allow for knowledge workers to better organize ideas and knowledge, smart/enhanced search tools that make it easier to find not only the knowledge of others in the organization but also to find your own knowledge (given that we know that in about 50% of the time knowledge workers recreate their own documents because they cannot locate them). Or tools that make it easier to track contacts and network, or to archive conversations/emails to be more searchable. There is no lack of tools but I do question some of them regarding the ability to actually help improve your ability to to PKM. Having said that, here's the site that I stumbled upon -- Spurl. Spurl is a "free on-line bookmarking service and search engine." Suppose like me you have your desktop computer and a laptop or two, all with different bookmarks. You can spend time copying bookmark files or sending links to yourself, or instead you can simply upload all your bookmarks from all your browsers/computers to Spurl and have them available in one place. But the real "beauty" of Spurl is what else can happen with bookmarked links -- Spurl is based in concept on the Del.icio.us model (and a bit like Google), so links saved by Spurl users can be ranked by relevancy, and the more users who link to the page the higher the relevancy. Add to that the ability to create personal hot lists, to browse other hot lists and to make recommendations and what you have as pretty nifty Web 2.0 tool that works well to support Personal Knowledge Management! And here's another that I've just also stumbled upon -- Gnoos which is a search engine for blogs where you can search globally and users are allowed to "vote" for the blog, moving it up or down in the search results. Useful for trying to find obscure blogs that aren't necessarily mainstream but might make for a good read. Bottom line is that Web 2.0 is definitely out there, and if you haven't considered it as such yet, those tools are going to add significantly to the toolbox available to support Personal Knowledge Management. Dr. Dan's Daily Dose: Personal Knowledge Management can greatly benefit from Web 2.0 tools and they are worth considering and learning to use.